A Trial of Carboxypeptidase-G2 (CPDG2) and Thymidine for the Management of Patients With Methotrexate Toxicity and Renal Dysfunction - Tabular View

Tracking Information
First Received Date ^ICMJE	November 3, 1999
Last Updated Date	March 3, 2008
Start Date ^ICMJE	March 1992
Primary Completion Date
Current Primary Outcome Measures ^ICMJE
Original Primary Outcome Measures ^ICMJE
Change History	Complete list of historical versions of study NCT00001298 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures ^ICMJE
Original Secondary Outcome Measures ^ICMJE

Descriptive Information
Brief Title ^ICMJE	A Trial of Carboxypeptidase-G2 (CPDG2) and Thymidine for the Management of Patients With Methotrexate Toxicity and Renal Dysfunction
Official Title ^ICMJE	A Trial of Carboxypeptidase-G2 (CPDG2) and Thymidine for the Management of Patients With Methotrexate Toxicity and Renal Dysfunction
Brief Summary	High dose methotrexate with leucovorin rescue has demonstrated activity in numerous malignancies. Although high dose methotrexate is generally well tolerated, unpredictable life-threatening toxicity can occur. For patients who have markedly delayed clearance of methotrexate secondary to renal dysfunction, therapeutic options are few and are of limited efficacy. Carboxypeptidase-G2 inactivates methotrexate by hydrolyzing its C-terminal glutamate residue. Carboxypeptidase-G2 could be used to rescue patients with renal dysfunction and delayed methotrexate excretion, as it provides an alternative to renal clearance as a route of elimination.
Detailed Description	High dose methotrexate with leucovorin rescue has demonstrated activity in numerous malignancies. Although high dose methotrexate is generally well tolerated, unpredictable life-threatening toxicity can occur. For patients who have markedly delayed clearance of methotrexate secondary to renal dysfunction, therapeutic options are few and are of limited efficacy. Carboxypeptidase-G2 inactivates methotrexate by hydrolyzing its C-terminal glutamate residue. Carboxypeptidase-G2 could be used to rescue patients with renal dysfunction and delayed methotrexate excretion, as it provides an alternative to renal clearance as a route of elimination.
Study Phase	Phase I
Study Type ^ICMJE	Interventional
Study Design ^ICMJE	Treatment, Safety Study
Condition ^ICMJE	Kidney Diseases
Intervention ^ICMJE	Drug: carboxypeptidase-G2
Study Arms / Comparison Groups
Publications *	Adamson PC, Balis FM, McCully CL, Godwin KS, Poplack DG. Methotrexate pharmacokinetics following administration of recombinant carboxypeptidase-G2 in rhesus monkeys. J Clin Oncol. 1992 Aug;10(8):1359-64. Widemann BC, Hetherington ML, Murphy RF, Balis FM, Adamson PC. Carboxypeptidase-G2 rescue in a patient with high dose methotrexate-induced nephrotoxicity. Cancer. 1995 Aug 1;76(3):521-6. Widemann BC, Balis FM, Murphy RF, Sorensen JM, Montello MJ, O'Brien M, Adamson PC. Carboxypeptidase-G2, thymidine, and leucovorin rescue in cancer patients with methotrexate-induced renal dysfunction. J Clin Oncol. 1997 May;15(5):2125-34.
* Includes publications given by the data provider as well as publications identified by National Clinical Trials Identifier (NCT ID) in Medline.

Recruitment Information
Recruitment Status ^ICMJE	Completed
Enrollment ^ICMJE	10
Completion Date	January 2001
Primary Completion Date
Eligibility Criteria ^ICMJE	Patients of any age at risk for life-threatening toxicity following MTX administration secondary to delayed drug excretion as defined by: Plasma MTX concentration at least 10 micromoles/liter more than 42 hours after the start of the MTX infusion; OR Creatinine at least 1.5 times the upper limit of normal or creatinine clearance less than 60 ml/sqm/min and delayed MTX excretion documented by plasma MTX concentration measurements (at least 2 standard deviations above the mean) at least 12 hours following MTX administration.
Gender	Both
Ages
Accepts Healthy Volunteers	No
Contacts ^ICMJE	Contact information is only displayed when the study is recruiting subjects
Location Countries ^ICMJE	United States

Administrative Information
NCT ID ^ICMJE	NCT00001298
Responsible Party
Study ID Numbers ^ICMJE	920134, 92-C-0134
Study Sponsor ^ICMJE	National Cancer Institute (NCI)
Collaborators ^ICMJE
Investigators ^ICMJE
Information Provided By	National Institutes of Health Clinical Center (CC)
Verification Date	February 2000
^ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP